vertical prestressing

control of anchoring stress loss of vertical prestressing bar for concrete structure

混凝土结构竖向预应力筋锚固应力损失的控制

discussion on web plate cracking of box girder and quality of vertical prestressing

箱梁腹板开裂与竖向预应力质量的探讨

calculation of the compressed stress in box beam web by vertical prestressing forces in consideration of stress diffusion

考虑竖向预应力扩散影响的箱梁腹板预压应力计算

The vertical tendon had to be prestressed twice to ensure effective prestressing.

竖向预应力应两次张拉以保证有效预应力.

Based on the concept of load lateral distribution coefficient, the expression used to calculate the prestressing loss caused by batched tension process applied in vertical plane, is extended to a simplified spatial formula which has general applicability.

结合荷载横向分布系数概念，将竖平面内的预应力钢筋分批张拉损失计算式进行推广，推导了具有普遍适用性的分批张拉损失空间简化计算公式。

experimental study on aseismic behavior of r. c. columns with vertical prestressing

竖向加预应力钢筋混凝土柱抗震性能试验研究